Topic 7.4 Notes – Darwinism, Social Darwinism

What Darwinism Is

Darwinism means biological evolution through natural selection. In AP Euro, it belongs to the post-1848 move toward scientific explanations of life instead of fixed religious or idealist ones.

The distinction you need totally clear is this:

Darwin did not invent his theory out of nowhere. Several earlier ideas made it possible:

• Charles Lyell argued for uniformitarian geology. Slow processes like erosion had shaped Earth over immense time, which meant Earth was old enough for gradual biological change.
• Jean-Baptiste Lamarck proposed that species changed over time, but he thought acquired traits could be inherited. The classic wrong example is giraffes stretching their necks and passing that on.
• Thomas Robert Malthus argued that populations grow faster than resources, so competition and scarcity matter.

Darwin developed his ideas during the voyage of the HMS Beagle from 1831 to 1836. This route map helps you connect the places AP questions usually mention, especially South America and the Galápagos Islands, where he saw patterns in fossils, geography, and animal variation that pointed toward change over time.

Route of the HMS Beagle, 1831-1836

One detail teachers love to test is that Alfred Russel Wallace independently reached a similar theory. Darwin’s major works were:

• On the Origin of Species (1859)
• The Descent of Man (1871)

How Natural Selection Works

Natural selection explains how evolution happens.

1. Individuals in a population vary.
2. Some of those variations are inherited.
3. More offspring are born than can survive.
4. The environment creates pressures.
5. Individuals with advantageous traits leave more offspring.
6. Those traits become more common over generations.
7. Over long periods, populations diverge into new species.

The classic example is Galápagos finches. Different beaks matched different food sources. In the finch drawing here, focus on the contrast in beak size and shape across the species. The key point is that the population changes over generations. A finch does not grow a new beak because it needs one.

Galápagos finches and beak variation

Terms students mix up

• Evolution means change in populations, not individuals.
• Fitness means reproductive success in a specific environment. It does not mean strongest, best, or morally superior.
• Common descent looks like a branching tree, not a ladder climbing upward.
• Natural selection does not promise perfection or constant progress.

“Survival of the fittest” was coined by Herbert Spencer, not Darwin. Darwin later used it, but in biology it meant best adapted. In political writing, that phrase often signals Social Darwinism.

How Darwinism Changed Science and Ideas

Darwin gave Europe a scientific and material account of biological change and human origins. Species were no longer fixed creations, and humans became part of nature instead of biologically separate from it.

This strengthened scientific naturalism, the idea that natural phenomena should be explained through evidence and natural causes.

That shift caused public controversy:

• Thomas Henry Huxley, “Darwin’s bulldog,” publicly defended evolution.
• The 1860 Oxford debate with Bishop Samuel Wilberforce became a famous symbol of science versus traditional religious authority.
• Some Christians rejected evolution, but others reconciled it with faith.

Caricatures of Darwin as an ape matter because they show public fear about religion and human dignity. On a source question, remember this. A caricature shows reaction to Darwin, not the actual theory.

How Social Darwinism Worked

Once Darwin made evolutionary explanation more powerful and respectable, other thinkers applied that language to society.

The logic went like this: struggle exists in nature, human groups also compete, winners must be the “fittest,” so wealth, conquest, or domination proves superiority. That is a social ideology, not biology.

Economic competition and class inequality

• Herbert Spencer is most associated with this version.
• He linked evolution to laissez-faire ideas and argued that helping the poor interfered with natural progress.
• Poverty got treated as inferiority instead of being explained by industrial conditions or unequal systems.

Racial hierarchy and pseudoscience

• Older racism got dressed up in scientific language.
• Arthur de Gobineau, in Essay on the Inequality of the Human Races, wrote before Darwin’s main work, so racism did not begin with Darwin.
• Non-Europeans were labeled less evolved. That was pseudoscience, not valid biology.

National rivalry and imperialism

• Nations were described as competing for survival.
• War and empire could then look “natural.”
• This connected to New Imperialism, the White Man’s Burden, and the French mission civilisatrice.

Eugenics

• Francis Galton wrote Hereditary Genius (1869) and coined eugenics in 1883.
• Eugenics encouraged reproduction of the “fit” and limiting the “unfit.”
• It reflected class prejudice, racism, and ableism.

Darwin and Social Darwinism Are Not the Same

This is the most important distinction in the topic. Darwin transformed biology. Social Darwinism borrowed Darwinian language to justify inequality, nationalism, and imperial domination from 1815 to 1914.

Darwin did not create Social Darwinism as a political doctrine. He opposed slavery and emphasized common human ancestry, though he still shared some Victorian racial assumptions.

The best causal chain is simple. Darwin explained biological change through natural selection. His theory made evolutionary, material explanations more influential. Later thinkers used that authority for social, racial, and imperial arguments.